Effects of Prestimulus Interval on Phonation Initiation Reaction Times

    Latencies for phonation initiation (from adducted, abducted, and a subject method, prephonatory vocal-fold position) were studied in 30 young adults under an auditory reaction time paradigm as a function of random prestimulus intervals. Shortest latencies were obtained when the auditory stimulus was presented within a 1000- to 2000-millisecond flame. Stimulus delivery at intervals exceeding or preceding this time flame increases the latency of vocal reaction.

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